Snap



' c. H. DAVIS El Al.-

SNAP

Filed May 15, 1929 April 22, 1930.

155227; UL use/ if I thesafetystraps and-belts used by linernen I I I e belt or hold-back strap, and place thering I i I 10 to provide adevicejof this character; wherein Y zo ojianylsort.

' Patented Apr. 22, 19 30 r cHAnLEs -11. nAvIs AND HENItYfW. L EC K,

' arianas KLEIN AND sons, or .cnIcAeo,

' 1, 85? i i I I M- f Application filed nayis,

V Qur invention relates to snaps, and more particularly to neans for preventing'a snap accidentallylf 7 1 5 Our invention is particularly applicable to v the snaps which are used, inv connection with fastener from.lceconning detached -or opened I in working on electric lines. t. r

" is the Principal P ose of this'hittntion the loop into whichthe snap fastens cannot be r removed-from the snap'except by manipulationof the loop intoa certain definite position I relative-tothe snap.

.-, It is also apurpose of thisi-nventionto provide means in connection with" the snap which will prevent ,the keeper thereof from being accidentally misplaceddueto the snap scraping gainstor catching, on projections 1 Other more detailed objects and advantages of theinventionwill appear asthe descriptionv I V proceeds in connection with the accompanying drawings." :It'is to be understood,"how

, .25 ever, that,we do not intend to limitourselves to the exact details shown and described, but

that we intend to availiourselves of} all such modifications; as w,ould occurto one skilled in'this art-and asofall within the'scope of: the claims. t 7' w v a '--'--In the drawings,'-

Fig. 1 is a top view'ofa linemans belt and safety strap employingmyinvention; f a Fi'g. 2 is an enlargedview of the -snap and r1ng;- a V Fig. .3 isa planfview-of the snap and, ring;

1 FigAg is aside view'of a slightly modified form oftheinvention.

Referring now in detailto the. drawing, a

lineman s belt is madenp-usually of the heavy d V holding strap 5 an'd' aisurrounding strap 6 which extends around the'h'eavy holding strap and may or may notbe fastened thereto per rnanently, this strap 6 being adapted to pass aroundthegwaisti of thtruser and be buckled together at 7. The hold-back strap V 5 terminates on opposite sides of thebuckle'f, as shown" at 8 a'nd9 and issecured, in the presentinstanceiby'means ofa rivet 10 to the i 1929,. 's-Serial No. 363,149; 7

ta Y rh'is is. somewhat difitr'ehtjtttm 31 7 past standard practice because it has been the:-

practice to place the ring 12- uponthe holdback strap 5, and place the snaps 11 upon the e5 safety strap "'13; tvWe find *it'advanta'geous;

however; as will be more fully pointed o'ut' hereinafter, to placethe snap itselfupon the a up on the safety strap,

strong, tough Inet'ahhas tliefree end; portion thereof extended well back," as shown tattle,

so as to cover the keeper 1 5; this'keeperbeing pivoted,inlfigs. 1 to 3, at16 to an'upstand? ingfprojection on the'snap. ,A spring 17 is 165 suitablyheld between the keeper and-the lowerportion-ofthe snap to yieldingly forcethe'; keeper upwardly-against the top portion'lfl' of the snap. The"keeper is,,of; course, pro- 7 70 tat-18,;to' prevent-theispringI17 .frornbeing VidedWith-the depending flanges, as indicated displaced by foreign elements 'getting incon tact therew ith, andthese flanges also serve as a'gulde to prevent lateral displace mentofthe keepen,

Asa further means ofjpreventing'lateral displacement of thekeepenthe upstanding projections,jsuch as indicated in dotted lines r I 'at'19, are provided to engage the opposite.

sides ofthe top-14 of the snap, this topvbeing cut away'to permit of this engagement withont having thekeeper extend laterally beyond the width of the top portion; The nose of. v

,the keeper is turned down and then slightly up again, as shown at 20, to provide a more ;or less V-shaped notch 21 as the only'place r t in which the ring 12 may engage to force the of'the free end of the nose makes it less like *keeper into open positions-[The upturning This'ringl2, as shown, is providedalong oneinterior side edgeith a pointed portion 122 whichis sufficiently V-shaped to engage V in the recess 21 to force the keeper down and permit removal. of the ring from the snap. This isvparticularly clear in Fig. 4, wherein must be plac'edto eng 7 move it from looking position. I

r that anything but the ti ht portion or the o ring will getbeneathit. r

It will be noted from an inspection of Figs.

2 and 4 that it is necessary to substantially reverse the ring from its normal pulling position and bring the safety strap 13 back toward the point of the top portion 14 of the snap before the ring can engage in the recess 21 to force the keeper into open position. As this position is one which it is practically impossible to attain with any force thereon, it is readily apparent that accidental displacement of the ring from the snap cannot take place in applicants device due to the ring forcing the snap keeper into open position. Moreover, the top portion 14 extending over the keeper 15 effectively prevents sharp projections or corners from pushing this keeper down, and thus releasing the ring from the snap. The snap, being pivoted upon the belt may, of course, follow the ring in any position the snap forces it, so that it is necessary to properly position them by manual "operation before they can be separated.

We find another advantage in having the ring upon the safety strap, which lies in the fact that a strap with rings in the ends is much less apt to be used for some unauthorized purpose, such as a tow line, than one would be which had snaps in the ends. This prevents the linemen from using their safety straps where they would be subjected to ex cessive strains which would weaken them beyond the point of safety. 7 .7 In the device shown in Fig. 4:, the only distinction between its operation and that shown in Figs. 1 to 3 lies in the fact that the keeper 15 is secured at 16 to the nose l lfof the top portion of the snap, the spring 17 being also placed between the keeper and the top portion 14: of the snap. The construction otherwise is identicahandneed not be further described herein. i V

From the above description, it is thought that the construction and advantages of this device will be clear to those skilled in "this art, andhaving thus described our invention, what we claim as new and desire'to secure by Letters Patent is: i 1

1. In a device of the character described, a snap having a spring-pressed keeper, a ring therein and cooperating means on said ring and snap whereby to permit depression of said ke'eperby the ring to removesaid ring only when the ring'is in one definite position relative to said snap. 1 i

2. In a, deviceof the character described,

a snap having a spring-pressed keeper, a ring therein andlcooperating' means on said-ring and snap whereby to permit depression of v wedge-shapedinner ed We portion at one side my of said ring the outer surface of sald ring being blunt and rounded.

7 3. In a device of the character described, a snap having a spring-pressed keeper, a ring therein and cooperating means on said ring and snap whereby to permit depression of said of ring, and means on said snap and keeper forming a wedge shaped recess for receiving said portion, said wedge-'sliaped'recess being proportioned to prevent all portions of said ring except said wedge shaped portion tofenter suflici'ently to open the keeper;

4:. A snap comprising a body portion having a hooked end, a keeper pivoted- 'to said body portion,.. resilient means resisting 'depression of said keeper ands'aid body portion being extended on the side opposite resilient means to cover said keeper. i

5. A snap comprising a body portion hav ing a hooked end, a keeper pivotedto said body portion, resilient means "resisting vde pression of said 'keeper'and said body portion being extended on the side opposite said resilient means to cover said keeper,saidkeeper and snap having cooperating portions for permitting an article held'th'erein to depress said keeper only when said article is pulled in one direction relative to saidsnap. 1

6. A snap-comprising a body portion ha'v ing a hooked Vendfa keeper pivotedto' said body portion, resilient means resisting depression of said keeper and said body portion being extended on the side opposite said resilient means to cover said keeper, said keeper and. snap having cooperating portions for permittinglan article held therein to depress said keeper only when said article is pulled in one,direction relative to said snap said' portionsforming a tapering recessin the in ner surface defined'bysaid snap and keeper.

' 7 In a device of the character described,.

a snap having means for secur'in'g 'the same Y to a belt or thelike and having aspring pressed keeper, ,a ringi'nsertible intofiaid snap'by depression of said keeper and locking meansgpreventlng depression of 'said keeper by said ring except when said ringis extended toward the secured end of said snap and force applied thereto in thedirection in which the ring is extended.

In a device ofthe character "described,

, a belt snap pivoted'to said belt having af depressible keeper, a strap having aringenl gageable in said snap andmeans on said ring andsn'ap whereby said ring can depress the snap keeper only when the strap and ring are doubled back thesnap.

' 9. In adevice ofthe character described,

abelt'snap pivoted to said belt having a depressible keeper, a strap having a ring engageable insaid snap and means on said ring and snap whereby said" ring can depress the 7 toward thepivoted end of snap keeper oniy Whenthe strap and rin are a J doubled back toward the pivoted end 0 the i is secured to the strap.

snap, said means including a tapered inner Wall portion on said ring Qppdsite Where it 10; In afdevice of the character described,

a belt snap pivoted to saidbelt having a depressible keeper, a strap having a ring engageable insaid snap and means on said ring and sfiap. whereby said ring can depress the snap keeperonly when the strap and ring are doubledback-towaid thepivdtedend of -ii i V the snap, said means includinga tape edinner wall portion on said ring opp'0site-where it is secured to the strap and a prtpjection' on h ep r inga tapered recess with the 1 inner wall of. said snap. I

In Witness whereqf, e

HAs. DAVIS; 

